Tag: AT2021ehb
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Astronomers witness unprecedented corona formation, evolution around black hole
With help from NASA’s Nuclear Spectroscopic Telescopic Array (NuSTAR) X-ray telescope, a group of researchers recently bore unusually close witness to the formation and evolution of an unexpected corona around a supermassive black hole as it destroyed a star that had passed too close to it. The event, located 250 million light years from Earth,…